Finding the Third Proportional to 1,620,165 and 3,545,466

Step by Step Solution

1. Step 1: Write the proportion equation
   1,620,165 : 3,545,466 = 3,545,466 : x
2. Step 2: Convert to fraction form
   1,620,165/3,545,466 = 3,545,466/x
3. Step 3: Cross multiply
   1,620,165x = 3,545,466 × 3,545,466
4. Step 4: Simplify right side
   1,620,165x = 12,570,329,157,156
5. Step 5: Solve for x
   x = 12,570,329,157,156/1,620,165
6. Step 6: Final answer
   x = 7,758,672.21